Tottenham captain Hugo Lloris has questioned their bottle after Friday's defeat at West Ham.
Spurs' Premier League title aspirations were dealt a shattering blow at the London Stadium after Manuel Lanzini scored in the 65th minute.
Lloris told ESPN: “At this stage of the season, it's the same for every team. We're all tired physically, mentally. The difference is mental.
“You have to cope on the pitch and get the result that you need. We were not capable of doing more.
“The worst thing was the feeling at 0-0. We said, 'maybe it's enough, maybe we'll get the goal that we needed.' No. That's not the way that you need to think in that kind of context.
“You need to do more, more. To push to your limit. And today unfortunately we were not capable to do that.
“I'm very gutted, in the way we played, especially. It was not enough. It's difficult to accept at this moment of the season – a very important [game] and especially in a derby game.
“We need to ask ourselves the right questions and try to understand what happened today."
Source: tribalfootball.com